Dalian Victor Industry & Trade Co ., Ltd.

Electrical Insulation Materials

Engineering Plastics

Mechanical Drive Parts

Polyimide film
Polyimide film is of heat resistant and fasculation by pyromellitic dianhydride and diaminodiphenylether
It possesses good quality of high temperature resistance, low temperature resistance, radiation resistance, electric and mechanic, as well as excellent quality of chemical resistance and burn resistance. As H-grade insulate materials, Continuous service temperature up to 220℃. It is used for winding isolation layer and slot liner of generator, motor, and transformer, as well as for flexible circuit board, copper clad sheet and pressure sensitive adhesive tape, etc.

Type

Type	Molding
V6050	Aluminum Foil
V6051	Salivating
V6052	Biaxilly Tension

Thickness

Nominal Thickness（μm）		25	40	50	75	100
Tolerance（μm）	V6050 V6051	+4 -3	+6 -5	+7 -6	+8 -6	+10 -7
Tolerance（μm）	V6052	±10%

Technical requirements

No.	Item			Unit	Value
					Thickness of film
					25um	40um	50um	75um	100um
1	Density			Density	1.4
2	Tensile strength	V6050, MD/TD		MPa	≥115
		V6051	MD TD		≥135 ≥115
		V6052, MD/TD			≥170
3	Elongation at break	V6050, MD/TD		%	≥30 ≥35
		V6051, MD/TD
		V6052, MD/TD			≥70
4	Shrinkage, MD/TD	150℃	V6050,V6051 V6052	％	≤1.0
		400℃	V6051,V6052		≤3.0
5	Dielectric strength	V6050, V6051	Average value	MV/m	≥150			≥130	≥110
			Individual value		≥100			≥80	≥70
		V6052	Average value		≥220	≥200	≥190	≥150	≥130
			Individual value		≥170	≥150	≥140	≥100	≥80
6	Surface resistivity,200℃			Ω	≥1.0×10¹³
7	Volume resistivity, 200℃			Ω·m	≥1.0×10¹⁰
8	Dielectric Constant,48~62Hz			－	3.5±0.4
9	Dielectric dissipation factor，48～62Hz			－	≤4.0×10^-3
10	Long-term Thermal resistance			℃	Long-term Thermal resistance

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